Consideration on spectrum for 5G

CHANG Ruoting

Bureau of Radio Regulation, MIIT, China

November 9, 2016

5G Main Drivers and Market Trends

Mobile Data Traffic: Thousands of times growth Mobile Internet & IoT Connections: Up to 100 billion

Mobile Internet and

Internet of Things (IoT)

are the main drivers of 5G

“Source: IMT-2020（5G） Promotion Group white paper”

Key features of 5G

ITU IMT-2020 Vision eMBB M-MTC URLLC

Indoor hotspot Dense urban Rural coverage Urban

coverage Urban

coverage

5 Test environments for Evaluation

14 KPIs

• User experienced data

rate

• Peak data rate

• Bandwidth

• Peak spectral efficiency

• Average SE

• 5th percentile user SE

• Mobility

• Mobility interruption

time

• User plane Latency

• Control plane latency

• Reliability

User experienced data rate

Area traffic capacity

Peak data rate

Spectrum efficiency (SE) Mobility

Latency

Connection density

Energy efficiency (EE)

• Energy efficiency

“Source: ITU-R WP 5D”Source:

ITU-R WP 5D

5G Promotion Plan

2014 2015 2016 2017 2018 2019 2020 2013

Requirement

Technology

Spectrum

5G Trial

Market & Services Scenarios and KPIs Evaluation methodology

Key technologies System design & evaluation

Research on spectrum below 6 GHz

Low, Medium & High candidate frequency bands

Enhanced technologies

5G Technology R&D Trial

5G Product R&D Trial

Evaluation &

Specification

Tech. requirements

& Eval. methodology Proposals Pre-standard research

R14: 5G study items

R15: The first 5G standard

R16: The completed 5G standard

Standards

WRC-15 WRC-19

R13: 4G

enhancement

China

IMT Spectrum allocated in China

CT : China Telecom

CMCC : China Mobile

CU : China Unicom

(Unit : MHz)

2025 2010

TDD

CM

CC

TD

-

SC

DM

A

2400 2300 2320 2370

CM

CC

TD

-

SC

DM

A

TD

-LT

E

CU

TD

-LT

E

2635 2575 2690 2555 2655 2500

TDD

CT

TD

-LT

E

CM

CC

TD

-LT

E

889 934 960 909 954

FDD↑

CM

CC

GS

M

CM

CC

GS

M

CU

GS

M/W

/

LT

E

915

1880 2130 2170 2110 1920 1980 1940 C

T

LT

E

1915

CT

LT

E

825 835 870 880

CT

C

DM

A/L

TE

CT

C

DM

A/L

TE

FDD↑ FDD↓

1710 1785

1850

1735

1830

1805

CU

GS

M

CU

GS

M

CM

CC

TD

-

SC

DM

A

TD

-LT

E

TDD

CM

CC

GS

M

CM

CC

GS

M

FDD↓

CU

TD

-LT

E

TDD

1765 1750

LT

E

LT

E

CT

L

TE

CT

L

TE

1780

1875

FDD↑

FDD↓

LT

E

1965 2155

FDD↑ FDD↓

• A total of 687MHz bandwidth planned for IMT

• 522MHz been allotted to 3 operators for 8 networks

1860 1955

CU

WC

DM

A

LT

E

CU

WC

DM

A

2145

CU

GS

M/W

/

LT

E

5G Spectrum Development in China

Low band (below 3 GHz) & Medium band (3-6GHz)

• 3.4-3.6GHz: IMT vs. FSS compatibility trial is due to be finished by 2017

• 3.3-3.4, 4.4-4.5, 4.8-5.0GHz: domestic coordination in progress of IMT identification in Chinese

Regulations on the Radio Frequency Allocation (new version)

• 5 905 - 5 925 MHz : assigned for LTE V2X trial

• Frequency bands planning for NB-IoT : encourage NB-IoT trial and further deployment Current available IMT bands used by operators

Considering about 2 x 2.3 MHz in frequency band 800 MHz for private network

High band (above 6 GHz)

• Promoting global/regional harmonization under WRC-19 AI.1.13

• High priority for 20~40GHz for outdoor deployment

• Current focuses of compatibility studies: 26GHz and 40GHz

5G eMBB deployment scenarios

Sub6GHz

Macro

HF Coverage HF Coverage LF/MF Coverage

mmWave mmWave

Sub6GHz:

• Connectivity & coverage & mobility

mmWave:

• Capacity boosting

• Self-Backhaul for easy site acquisition

mmWave

Master

Source: Huawei

To enable business success of 5G eMBB deployment

Harmonized frequency bands and larger contiguous bandwidth

Network need to support aggregation of frequency bands below and above 6GHz

More than 100MHz per operator at Medium band, 2GHz per operator in the range of 24.25-43.5GHz

5G compatibility trial in 3.4-3.6GHz band

• On January 7th, 2016, MIIT launched 5G compatibility trial

• Evaluate compatibility between IMT @ 3.4-3.6GHz and FSS @ 3.6-4.2GHz

Lab test Field test (no more than 20 BSs)

5G mmWave bands preliminary compatibility studies

• Conduct preliminary compatibility studies on certain frequency bands specified in WRC-19 AI

1.13, such as 25.25-27.5GHz (between IMT and ISS) ,37-42.5GHz .

• Uncertainty remains in several aspects and needs further studies

IMT and ISS @ 25.25-27.5GHz as an example

Channel model

• e.g. clutter loss

5G model

• e.g., densities / antenna patterns / eirp

of 5G BSs and UEs

Overlaps of bands with other WRC-19 AI

• 1.6 (NGSO FSS) / 1.14 (HAPS) / issue

9.1.9

Uncertainties needs further studies

Cellular V2X -- important URLLC application

LTE V2X （Broadcast-based Sensor Sharing）

5G V2X (Sectorized/beamforming-based driving negotiation, shorter TTI, bi-directional

communication)

动态试验广场

直径：300m

基本性能环道

车道总长约2000m，

宽15m，双向四车道 C

I

基站1

基站2

基站3

• Prototype supported by National Science

and Technology Major Project

• LTE-V2X trial in Shanghai, Chongqing etc.

@5905-5925 MHz

Key points for 5G spectrum

• Harmonization

• Satellite component

• Licensing mechanism

exclusive licensing

licensing(sharing with other service(s) or application(s))

light licensing or tech neutral block licensing

license-exempt

• Backhaul/front-hual

Remarks

• 5G system need to support aggregation of frequency

bands: low and medium band for 5G coverage and

capacity, high frequency band for 5G capacity and

backhaul/fronthual.

• C band will be the key 5G band, particular for initial 5G

deployment.

• Frequency band below 1GHz is preferable for MTC

• V2X will be a key application of 5G URLLC

• Cooperation in ITU-R is important to ensure global/

regional harmonization of 5G spectrum

Thank you !